凉爽的阴影和不太凉爽的阴影:在当前和未来的气候条件下,息地丧失如何加速热应激?
Gavin Stark1, Liang Ma2,3, Zhi-Gao Zeng2
1Faculty of Life Sciences, School of Zoology, Tel Aviv University, Tel Aviv, Israel.
Global change biology
|June 7, 2023
概括
息地丧失和气候变化对沙漠产生影响. 保护模型必须包括微息地多样性,以预测不断变化的环境如何影响活动和生存.
科学领域:
- 生态与保护生物学 生态与保护生物学
- 气候变化对野生动物的影响
- 杂虫学和行为生态学
背景情况:
- 全球生物多样性受到息地丧失,土地利用变化和气候变化的威胁.
- 现有的预测模型往往忽视了微生物息地的多样性,限制了它们在保护方面的准确性,特别是对于热.
- 了解微息地选择对于预测物种对环境变化的反应至关重要.
研究的目的:
- 开发和验证一个模型,评估息地丧失和气候变化对白天生活的沙漠的综合影响.
- 检查微息地可用性如何影响活动模式和在不同环境条件下的选择.
- 通过突出预测建模中微息地考虑的重要性,为保护战略提供信息.
主要方法:
- 生态模型的构建和现场参数化.
- 模拟息地丧失场景 (例如,没有岩石的区域).
- 对预计气候变化对热应激和活动的影响 (冬季变暖,夏季变热) 的分析.
主要成果:
- 模型预测,居住在无岩石地区的的夏季活动减少.
- 未来的变暖预计将减少由于热应激,甚至来自大型岩石的岩石地区的夏季活动.
- 温暖的冬季会增加活动,但需要进入灌木和小岩石,以获得热避难所 (阴影).
结论:
- 目前被认为不那么重要的微型息地可能在未来的气候变化情景下变得对生存至关重要.
- 保护建模框架必须整合微息地要求,以准确预测和有效的保护结果.
- 这项研究强调了在对外热物种的保护计划中需要进行详细的微息地评估.
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